[mythtv-users] HD Hiomerun works better in HDHomeRun viewer than MythTV

Don Brett dlbrett at zoominternet.net
Thu Jan 24 23:46:23 UTC 2019

On 1/3/2019 1:42 PM, Gary Buhrmaster wrote:
> On Thu, Jan 3, 2019 at 2:39 PM Don Brett <dlbrett at zoominternet.net> wrote:
>> Thanks Gary; network questions and dropped packets seem to be the
>> consensus so far.  I tried the network test from the Silicon Dust
>> thread; it worked perfectly, with zero errors.  I assume
>> hdhomerun_config is using TCP.
> Nope, hdhomerun_config uses UDP, just like MythTV.
> But it is *critcal* to run the test on the same system
> as the MythTV BE.  There are many issues with some
> system(s) and their hardware and/or drivers and/or
> configuration of the IP stack that can be a contributing
> factor.
Not sure why this test didn't work before, but it does now.  I verified 
the pixelation was happening in myth, then ran the test on that same RF 
channel, directly on the be/fe box, for 104 minutes. Results are:

don at nick:~$ hdhomerun_config FFFFFFFF set /tuner0/channel auto:36
don at nick:~$ hdhomerun_config FFFFFFFF save /tuner0 null
.........several row of dots..........

-- Video statistics --
11,480,828 packets received, 0 overflow errors, 0 network errors, 0 
transport errors, 0 sequence errors.

It looks like the test received over 11 million packets, with no 
errors.  I'm not sure what this means....same hardware, same OS, same 
TCP stack...what's next?

PS - Transmitter info is below; I've noticed that TV channel 21 is less 
bad than 27 and 33.  I located my attenuator.  I'll install it and see 
what happens.

The local channels are 21, 27, and 33
Distance    Heading    RF channel    TV channel
4 mi            351 deg        auto:20        21.1
4 mi            351 deg        auto:20        21.2
2 mi            353 deg        auto:36        27.1
2 mi            353 deg        auto:36        27.2
2 mi            353 deg        auto:36        33.1
2 mi            353 deg        auto:36        33.2

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